- minimist
parse argument options
- commander
the complete solution for node.js command-line programs
- mkdirp
Recursively mkdir, like `mkdir -p`
- async
Higher-order functions and common patterns for asynchronous code
- http
- colors
get colors in your node.js console
- path
- debug
small debugging utility
- winston
A logger for just about everything.
- Top 12 Jupyter Notebook extensions